Bullet



Mar. 6, 1923 1,447,478.

E. J. KOSHOLLEK ET AL.

BULLET.

FILED JULY 5.1921.

avwawtoz Patented Mar. 6, 1923.

UNITED STATES PATENT OFFICE."

EMIL J. KOSHOLLEK AND ALOIS J'. KOSHOLLEK, OF STEVENS POINT, WISCONSIN.

* BULLET.

Application filed July 5,

To all whom it may concern:

Be it known that we, EMIL J. KOSHOLLEK and Arms J. KOSHOLLEK, citizens of the United States, residing at Stevens Point, in the county of Portage and State of Wisconsin, have invented certain new and useful Improvements in Bullets; and we do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved bullet which is especially, although not necessarily, designed for shooting game; being, of course, adaptable for other uses.

Experience in shooting game has disclosed the fact that the ordinary jacketed type of bullet when shot to travel at modern velocity has proven, beyond a doubt, that it will not stand up when driven into animal tissues. The lead core in its thin plastic copper or cupro-nickel shell is too frail to accomplish the desired end, since it literally explodes and the entire bullet from point to base is practically rendered into small worthless fragments which fail to penetrate deeply enough and expend their entire energy at or near the surface of the animal, in this way causing only a superficial wound that does not kill but permits the animal to escape into the thicket to die a lingering death. Hence, a complete loss to all concerned.

The full metal cased bullet'is little or no better than the one above mentioned since it penetrates clean, imparting no shock, and the hole at the point of entrance and exit is seldom much larger than the diameter of the bullet.

Modern velocities have emphatically called for a radical change in bullet construction for use in shooting game. Much study and thought has proved that what is needed is a bullet that Wlll combine the shocking power of the ordinary jacketed type of game bullet and a high velocity, together with a bullet which has the power of the full metal cased bullet which will penetrate to the Vitals of the animal regardless of where it is struck, providing, of course, that the Vitals come in a line with the bullets course.

In view of the foregoing circumstances, we have devised a jacketless bullet which possesses the qualities above referred to, one that really does combine the shocking power 1921. Serial No. 482,463.

to penetrate to a point to insure death. In short, our idea is controlled mushrooming which is entirely in keeping with the increase in the velocity of modern rifles from 1000 and 2000 ft. seconds to 2700 to 3000 ft. seconds.

Before proceeding further, it is desirable to point out some of the aims and features that our bullet possesses over those pre viously patented soft-pointed jacketed game bullet of high speed fails to stand the impact when coming into contact with animal tissue, so they also fail to stand up under the terrific blow of the powder gases in the bore of the rifle which have a pressure of 45,000 to 50,000 lbs. per square inch. This extreme pressure badly -allowing gas to escape unevenly at muzzle,

with the ability and marketed. Just as the thus giving the bullet a bad start at the' muzzle and in turn causing inaccurate flight. It'often happens that if such types of bullets are expanded too tightly in the bore of the gun barrel, the friction is such that it causes many troubles from split jackets, melted cores and fouling of the bore. Our bullet overcomes the above circumstances and will doubtless stand up under the most extreme chamber pressures now in use. It resists deformation in the bore of the rifle barrel,insures perfect delivery at the muzzle, and in this way assures accurate flight. There is absolutely no danger of any portion of the bullet remaining in the'barrel as often happens with the types of bullets under discussion.

Not only has the invention the above aims in View, but it contemplates the provision of construction that it can be manufactured in great quantities in a small space of time t by existing types of machinery, and it is thus rendered extremely inexpensive to both the manufacturer and the user.

At this point, we wish to direct attention to the fact that it is one of the very important features of this invention to provide a bullet wherein the rear end .of the body 'is sufliciently hard to render it susceptible of readily penetrating the tissues and vita-ls until its entire energy is expended, and to associatewith such a body a tip, which will be readily spread as soon as it strikes an ob struction, thereby curling the forward portion of the body in such a way as to inflict a severe wound which practically insures iii-- stant death.

Many other features of the invention will become apparent as the description goes on. In the accompanying drawings wherein the preferred type of bullet is shown and like parts are referred to by like reference characters throughout the same:

Figure 1 is an elevational view of a complete bullet constructed'in accordance with this invention.

Figure 2 is a central vertical sectional view through the bullet.

Figure 3 is a view somewhat similar to Fig. 2 showing the relative position of the parts prior to completion.

Figure f is an enlarged taken substantially on the plane of Jr-4 of .Fig. 3.

Figure 5 is a view showing how one of the bullets looks after use.

In carry ln out the invention, use of a bo y 1 shaped like the sectional view the l1ne we make types of game bullets now used, the same being of any suitable calibre and being preferably composed of metal, 95% of which is copper, 4-%% zinc and lead, thus producing a body which is comparatively hard and durable and such that it will penetrate the tissues as does the full metal cased bullet now used. If desired, this body will be provided at its inner end with a plurality of circumferentially spaced bearing rings 2. During the process of manufacture of the body, we take a body of truly cylindrical form and with a suitable machinery taper the front end thereof until it assumes the shape shown in Fig. 3. Then, a bore 3 is drilled down into the bod .from its forward end toward the center t iereof leaving a comparatively thin neck 4 and a relatively thin tape-red portion portion of the bullet 5. Having done this, a lead slug 6 is placed in the bore so that its outer end terminates short of the corresponding end of the body. Now, by the use of suitable machinery, the neck 4 and adjacent portion of the tapered end of the body is crowded or contracted in such a way as to extrude the outer end of the slug to provide a pointed head 7 simulating an arrowhead. Formation of this head in this manner causes the adjacent portion of the slug to become tapered as indicated at 8. Hence, bullet practically in to the point where the slug'stops, is readily and easily destructible when brought into contact with an obstruction. Therefore, when such an obstruction is met, this portion of the body is split in such a way that it curls and assumes a shape somewhat like that indicated in Fig. 'In this respect, our bullet is very much like the ordinary type of mushroom bullet used for game shooting. As before stated. while this curls up in the way noticeable extent.

the entire forward end of thedisclosed, the rear end portion of the body which is solid and resists such action, is such that it penetrates the tissues and Vitals until its entire energy is expended. It is to be pointed out here that although a certain process has been mentioned in the way of forming the bullet, this process can, of course, be varied; yet, it is very much preferred over any other ways known at this time for manufacturing our bullet.

From the foregoing description it will be seen that a bullet of considerable merit has been devised, the same being jacketless and greatly advantageous over jacketed and full metal cased types of bullet in that it possesses the qualities of strength, accuracy penetration, and can be driven at the very highest velocity. There is no lead core to melt from the friction of the bullet with the barrel, there is no easily destructible core which would change its shape from upsetting, there is no weak part which will be rendered into fragments as soonas contacting an obstruction, nor is there any part to permit escape of gases or ruin the internal wall of the gun barrel in any way. Th foregoing and other advantages and features of the invention have doubtless become apparent from the foregoing description and in view of this, a more lengthy and detailed description is thought unnecessary.

Here it may be pointed out, that in Fig. 5 of the drawin s we have disclosed an elevational view of a bullet which has been actually used, the same having weighed approximately 95 grainsbefore firing and after being recovered weighing 30% less. The laceration and shock accomplished by the bullet is all that could be possibly desired and the rear portion as shown completed enetration without being disrupted to a This last-named feature in an expanded game bullet is one which has long been sought by sportsmen using high velocity rifles for game shooting and will doubtless be found advantageous in view of this.

lVhile we have shown and described a particular construction of bullet, we desire it to be understood that within the scope of the claims annexed, slight minor changes may be resorted to.

we claim: 1

1. A game bullet comprising a solid hard metal body having a cylindrical rear end and a tapered forward end, said last end having socket formed therein, to render the forward portion of the body relatively thin and easily susceptible of splitting, and a solid but soft metal slug constituting a tip arranged in the socket and extending be youd the outer end thereof, the outer end 01 said slug being relatively small and formei with a fine point, for the purpose described 2. The process of forming a bullet capable the body to extrude' the outer end of said of penetration and partial laceration conslug t0 provlde a tlp.

sistlng in forming a bore inahard metal In testimony whereof We have hereunto 10 body at the outer end of the latter, placing set our hands.

a soft metal slug therein so that it will terminate short of the front end of the body, and contracting the extended front end of EMIL J. KOSHOLLEK. ALOIS J. KOSHOLLEK. 

